Not for solo females.
The room itself was nice, it is as shown in the photos. Host was very helpful as well.
One key thing to note is the area- it's just full of bars and weed dealers and rowdy white men, I really DO NOT recommend for solo female travellers, especially if you're asian. I did not feel safe outside of the room, not even the corridor outside because it was so dark. the lift is dismal and I was very concerned about both white men and ghosts.
It can also get very rowdy in the night up to 2-3am bangkok time, the walls are quite thin, so not the best for light sleepers too.